Mark 9:32

They, however, did not understand what He meant, and were afraid to question Him.

Luke 2:50

But they did not understand the significance of these words.

Luke 18:34

Nothing of this did they understand. The words were a mystery to them, nor could they see what He meant.

Luke 9:45

But they did not understand His meaning: it was veiled from them that they might not perceive it, and they were afraid to ask Him about it.

Mark 9:10

So they kept the matter to themselves, although frequently asking one another what was meant by the rising from the dead.

John 12:16

The meaning of this His disciples did not understand at the time; but after Jesus was glorified they recollected that this was written about Him, and that they had done this to Him.

John 16:19

Jesus perceived that they wanted to ask Him, and He said, "Is this what you are questioning one another about--my saying, 'A little while and you do not see me, and again a little while and you shall see me'?

Mark 7:18

"Have *you* also so little understanding?" He replied; "do you not understand that anything whatever that enters a man from outside cannot make him unclean,

Mark 8:17-18

He perceived what they were saying, and He said to them, "What is this discussion of yours about having no bread? Do you not yet see and understand? Are your minds so dull of comprehension?

Mark 8:33

But turning round and seeing His disciples, He rebuked Peter. "Get behind me, Adversary," He said, "for your thoughts are not God's thoughts, but men's."

Mark 16:14

Later still He showed Himself to the Eleven themselves whilst they were at table, and He upbraided them with their unbelief and obstinacy in not having believed those who had seen Him alive.

Luke 24:45

Then He opened their minds to understand the Scriptures,

John 4:27

Just then His disciples came, and were surprised to find Him talking with a woman. Yet not one of them asked Him, "What is your wish?" or "Why are you talking with her?"

Treasury of Scripture Knowledge

Summary

But they understood not that saying, and were afraid to ask him.

General references

Bible References

Were

Mark 7:18
"Have *you* also so little understanding?" He replied; "do you not understand that anything whatever that enters a man from outside cannot make him unclean,
Mark 8:17
He perceived what they were saying, and He said to them, "What is this discussion of yours about having no bread? Do you not yet see and understand? Are your minds so dull of comprehension?
Mark 16:14
Later still He showed Himself to the Eleven themselves whilst they were at table, and He upbraided them with their unbelief and obstinacy in not having believed those who had seen Him alive.
John 4:27
Just then His disciples came, and were surprised to find Him talking with a woman. Yet not one of them asked Him, "What is your wish?" or "Why are you talking with her?"
John 16:19
Jesus perceived that they wanted to ask Him, and He said, "Is this what you are questioning one another about--my saying, 'A little while and you do not see me, and again a little while and you shall see me'?

General references

Matthew 15:16
"Are even you," He answered, "still without intellingence?
Luke 9:45
But they did not understand His meaning: it was veiled from them that they might not perceive it, and they were afraid to ask Him about it.
Luke 18:34
Nothing of this did they understand. The words were a mystery to them, nor could they see what He meant.